BLACK TOURMALINE - a stone of the perfected heart, one that is strong, vital, and full of passion for love and life. Also, Black Tourmaline is said to be a radiation blocker and shield against toxins, electromagnetic smog, and radiation related to mobile phones, PCs, and other electronic hardware.
HEMATITE (Terahertz) - Known as the ‘stone for the mind’. It has been used to help with mental organization, calming, protection and grounding. It is said to aid in original thinking, logical thinking and mathematics. Said to decrease negative thinking. Hematite is the stone most often used for grounding and defusing excess energy.